Bharat Sanchar Nigam Limited (Bihar) 4th Floor, O/o the CGMT Bihar Circle, Sanchar Sadan, Budh Marg, Patna Bihar - 800001,
Bharat Sanchar Nigam Limited (Assam) O/o The CGMT, Assam Telecom Circle, BSNL Bhawan, Panbazar, Guwahati Assam ,
Bharat Sanchar Nigam Limited (Assam) Vill - Rangaloo PO-Jumarmur, Via- Kathiatoll, Dist- Nagaon, PIN- 782427 (Assam)
Bharat Sanchar Nigam Limited (Andhra Pradesh) Spandana Social Service, Yemmiganur, Kurnool District-518360, Andhra Pradesh .
Bharat Sanchar Nigam Limited (Andhra Pradesh) O/o the CGMT,4th Floor , BSNL Bhavan, Chuttigunta, Euru Road, Vijayawada-4.
Bharat Sanchar Nigam Limited (Andaman & Nicobar) O/oCGMT, BSNL Bhavan, Sri Vijayapuram, Andaman&Nicobar Islands
Mahanagar Telephone Nigam Limited (Mumbai ) J Block, Azad Maidan, Opp. Cama Hospital, Mahapalika Marg, Mumbai- 400001,
Mahanagar Telephone Nigam Limited (Mumbai ) Ground Floor, Telecom Bldg , MTNL Marg, Prabhadevi Dadar,Mumbai -28
Mahanagar Telephone Nigam Limited (Mumbai ) J Block, Azad Maidan, Opp. Cama Hospital, Mahapalika Marg, Mumbai- 400001, Tel. No.: 22621612, Fax: 22659715
Mahanagar Telephone Nigam Limited (Mumbai ) 5th Floor, Admn Wing, BKC Tele Exch Bldg, Kurla (W), Mumbai-98,
